Question

find the distance d(p1,p2) between the points p1 and p2.

Answer 1

I know how to work the problem, its just when I get the answer square root 90. how do I simplify

Answer 2

You can make a right triangle with any two points where the base is parallel to the x-axis and the height is parallel to the y-axis. That means:

b = |x2 - x1|
h = |y2 - y1|

Now you can use Pythagorean Theorem to find the distance between the two.

Answer 3

90 = 9 x 10 so the square root of 90 = the square root of 9 x the square root of 10.

Answer 4

Its plotted on a graph